| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 164 | 千吨 | 2026-9 |
| 1997 | 158 | 千吨 | 2026-9 |
| 1996 | 133 | 千吨 | 2026-9 |
| 1995 | 123 | 千吨 | 2026-9 |
| 1994 | 129 | 千吨 | 2026-9 |
| 1993 | 113 | 千吨 | 2026-9 |
| 1992 | 101 | 千吨 | 2026-9 |
| 1991 | 111 | 千吨 | 2026-9 |
| 1990 | 126 | 千吨 | 2026-9 |
| 1989 | 130 | 千吨 | 2026-9 |
| 1988 | 133 | 千吨 | 2026-9 |
| 1987 | 123 | 千吨 | 2026-9 |
| 1986 | 114 | 千吨 | 2026-9 |
| 1985 | 118 | 千吨 | 2026-9 |
| 1984 | 115 | 千吨 | 2026-9 |
| 1983 | 107 | 千吨 | 2026-9 |
| 1982 | 95 | 千吨 | 2026-9 |
| 1981 | 89 | 千吨 | 2026-9 |
| 1980 | 94 | 千吨 | 2026-9 |
| 1979 | 92 | 千吨 | 2026-9 |
| 1978 | 93 | 千吨 | 2026-9 |
| 1977 | 94 | 千吨 | 2026-9 |
| 1976 | 93 | 千吨 | 2026-9 |
| 1975 | 82 | 千吨 | 2026-9 |
| 1974 | 73 | 千吨 | 2026-9 |
| 1973 | 63 | 千吨 | 2026-9 |
| 1972 | 53 | 千吨 | 2026-9 |
| 1971 | 46 | 千吨 | 2026-9 |
| 1970 | 43 | 千吨 | 2026-9 |
| 1969 | 40 | 千吨 | 2026-9 |
| 1968 | 35 | 千吨 | 2026-9 |
| 1967 | 30 | 千吨 | 2026-9 |
| 1966 | 209 | 千吨 | 2026-9 |
| 1965 | 176 | 千吨 | 2026-9 |
| 1964 | 165 | 千吨 | 2026-9 |